Next Article in Journal
Exploiting Process-Related Advantages of Selective Laser Melting for the Production of High-Manganese Steel
Previous Article in Journal
Microhardness and In Vitro Corrosion of Heat-Treated Mg–Y–Ag Biodegradable Alloy
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Materials 2017, 10(1), 54; doi:10.3390/ma10010054

Capability Study of Ti, Cr, W, Ta and Pt as Seed Layers for Electrodeposited Platinum Films on γ-Al2O3 for High Temperature and Harsh Environment Applications

SAWLab Saxony, IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Javier Narciso
Received: 26 November 2016 / Revised: 22 December 2016 / Accepted: 5 January 2017 / Published: 11 January 2017
(This article belongs to the Section Structure Analysis and Characterization)
View Full-Text   |   Download PDF [15191 KB, uploaded 11 January 2017]   |  

Abstract

High temperature surface acoustic wave sensors based on radio frequency identification technology require adequate antennas of high efficiency and thermal stability for the signal transmission. Platinum is well known and frequently used as a material of choice for high temperature and harsh environment applications because of the high melting point and its chemical stability. Therefore, one way to realize high temperature stable antennas is the combination of a Pt metallization on an Al 2 O 3 substrate. As a cost-effective technique, the Pt film is deposited via electrochemical deposition. For this growth procedure, a pre-deposited metallization on the Al 2 O 3 layer is required. This paper analyzes the influence of various seed layers (Ta, Ti, W, Cr, Pt) on the morphology, stability and electrical properties of the electrochemically-grown Pt thick film after heat treatments up to 1000 C in air. We find an oxidation of all adhesion layers except for Pt, for which the best electrical properties were measured. Although significant areas of the films delaminate from the substrate, individual anchor structures retain a stable connection between the Pt layer and the rough Al 2 O 3 substrate. View Full-Text
Keywords: surface acoustic waves; high temperature sensors; planar Pt antenna; electrodeposition; Al2O3 surface acoustic waves; high temperature sensors; planar Pt antenna; electrodeposition; Al2O3
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Seifert, M.; Brachmann, E.; Rane, G.K.; Menzel, S.B.; Gemming, T. Capability Study of Ti, Cr, W, Ta and Pt as Seed Layers for Electrodeposited Platinum Films on γ-Al2O3 for High Temperature and Harsh Environment Applications. Materials 2017, 10, 54.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top